Home / 213,078.90-319,535.22-79,886.46

Finding the Fourth Proportional to 213,078.90, 319,535.22 and 79,886.46

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Solution

The fourth proportional to 213,078.90, 319,535.22 and 79,886.46 is: 119,798.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,078.90 : 319,535.22 = 79,886.46 : x
  2. Step 2: Convert to fraction form
    213,078.90/319,535.22 = 79,886.46/x
  3. Step 3: Cross multiply
    213,078.90x = 319,535.22 × 79,886.46
  4. Step 4: Simplify right side
    213,078.90x = 25,526,537,571.12
  5. Step 5: Solve for x
    x = 25,526,537,571.12/213,078.90
  6. Step 6: Final answer
    x = 119,798.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.